Much cheaper than Home Depot or Lowes. WARNING: They are VERY tight. To remove the PVC pipe from the fitting you will need to use two pipe wrenches. So if you are taking something apart I would suggest installing a screw about 16mm from the end of the fitting hole to prevent the tube from falling out. All the Way. (see image) The fit is tight enough to hold together and is easy to loosen with your hand or a small wrench. This method worked great for my custom light fixture.
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